Cal Power TrueWave TW5250 Service Manual page 79

SERVICE MANUAL
Wait until the power analyzer has stabilized and record the watts reading as RDNG3.
Query the TW's watts using the GPIB string below, and record this value as MEAS3.
MEAS{1,2,3}:POW?
Program the TW to 320 Hz using the string below:
SOUR{1,2,3}:FREQ 320
Wait until the power analyzer has stabilized and record the watts reading as RDNG4.
Query the TW's watts using the GPIB string below, and record this value as MEAS4.
MEAS{1,2,3}:POW?
Program the TW to 500 Hz using the string below:
SOUR{1,2,3}:FREQ 500
Wait until the power analyzer has stabilized and record the watts reading as RDNG5.
Query the TW's watts using the GPIB string below, and record this value as MEAS5.
MEAS{1,2,3}:POW?
Program the TW to 60 Hz, output off using the string below:
SOUR{1,2,3}:FREQ 60
OUTP OFF
Calculate the calibration constants:
VALUE1 = RDGN1/MEAS1
VALUE2 = RDGN2/MEAS2
VALUE3 = RDGN3/MEAS3
VALUE4 = RDGN4/MEAS4
VALUE5 = RDGN5/MEAS5
Update the TW's calibration data:
CAL{1,2,3}:MEAS:REM:HIR:WATT:FREQCAL VALUE1 VALUE2 VALUE3 VALUE4 VALUE5
CALIBRATION
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